Aquatic exerciser



FIG. 1 is a plan view from above of the aquatic exerciser to which the design is applied;

FIG. 2 is a plan view from below;

FIG. 3 is a right side elevation view;

FIG. 4 is a left side elevation view;

FIG. 5 is a front elevation view;

FIG. 6 is a rear elevation view;

FIG. 7 is a top front perspective; and,

FIG. 8 is a rear perspective. 

The ornamental design for an aquatic exerciser, as shown and described. 